Fischer is the strongest player in the world. In fact, the strongest player who ever lived.
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[Event "rated untimed match"] [Site "St Louis"] [Date "2021.??.??"] [Round "?"] [White "Svidler, Peter"] [Black "Liem, Le Quang"] [Result "0-1"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "8/R5pk/3Q3p/P5p1/8/2P1r2P/2q3PK/8 b - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] { In this game, black played 1...Qf5? and lost after 2 Qd4. What move did black miss? } 1... Qf2 2. Kh1 ( { White can try: } 2. Qd4 Qg3+ 3. Kg1 Re1# ) ( { White can try: } 2. Rc7 Rxh3+ 3. Kxh3 Qh4# ) 2... Re1+ 3. Kh2 Qg1+ 4. Kg3 Re3+ 5. Kg4 Qxg2+ 6. Kf5 Qxh3# 0-1